Investigation on apple blotch resistance of Malus baccata 'Jackii'

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Autorschaft

  • M. Pfeifer
  • S. Richter
  • T. Wohner
  • A. Peil
  • M. Knoche
  • H. Flachowsky

Externe Organisationen

  • Julius Kühn-Institut (JKI) Bundesforschungsinstitut für Kulturpflanzen
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Titel des SammelwerksProceedings of the XVI EUCARPIA Symposium on Fruit Breeding and Genetics
Herausgeber (Verlag)International Society for Horticultural Science
Seiten95-96
Seitenumfang2
ISBN (Print)978-94-62614-11-6
PublikationsstatusVeröffentlicht - 30 Okt. 2024

Publikationsreihe

NameActa Horticulturae
Herausgeber (Verlag)International Society for Horticultural Science
Band1412
ISSN (Print)0567-7572

Abstract

The fungal pathogen Diplocarpon coronariae causes apple blotch and has rapidly spread throughout Europe in recent years. The most sustainable approach to control this disease is breeding cultivars that exhibit high tolerance or resistance to it. Screenings of the Malus germplasm collection from the Fruit Genebank of the Julius Kühn Institute showed that an accession from Malus baccata is resistant to Diplocarpon coronariae. In this study, Malus baccata ‘Jackii’ and two susceptible genotypes were artificially inoculated and evaluated for their resistance to apple blotch in a detached leaf assay. The phenotypic evaluation revealed a difference in the number of necrotic spots among the genotypes. Additionally, after abrading the cuticle with silicon carbide, a higher amount of Diplocarpon coronariae-specific DNA was detectable in the susceptible cultivars compared to Malus baccata ‘Jackii’. This indicates that the resistance mechanism observed in Malus baccata ‘Jackii’ is not restricted to the cuticle.

ASJC Scopus Sachgebiete

  • Agrar- und Biowissenschaften (insg.)
  • Gartenbau

Zitieren

Investigation on apple blotch resistance of Malus baccata 'Jackii'. / Pfeifer, M.; Richter, S.; Wohner, T. et al.
Proceedings of the XVI EUCARPIA Symposium on Fruit Breeding and Genetics. International Society for Horticultural Science, 2024. S. 95-96 (Acta Horticulturae; Band 1412).

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Pfeifer, M, Richter, S, Wohner, T, Peil, A, Knoche, M & Flachowsky, H 2024, Investigation on apple blotch resistance of Malus baccata 'Jackii'. in Proceedings of the XVI EUCARPIA Symposium on Fruit Breeding and Genetics. Acta Horticulturae, Bd. 1412, International Society for Horticultural Science, S. 95-96. https://doi.org/10.17660/ActaHortic.2024.1412.14
Pfeifer, M., Richter, S., Wohner, T., Peil, A., Knoche, M., & Flachowsky, H. (2024). Investigation on apple blotch resistance of Malus baccata 'Jackii'. In Proceedings of the XVI EUCARPIA Symposium on Fruit Breeding and Genetics (S. 95-96). (Acta Horticulturae; Band 1412). International Society for Horticultural Science. https://doi.org/10.17660/ActaHortic.2024.1412.14
Pfeifer M, Richter S, Wohner T, Peil A, Knoche M, Flachowsky H. Investigation on apple blotch resistance of Malus baccata 'Jackii'. in Proceedings of the XVI EUCARPIA Symposium on Fruit Breeding and Genetics. International Society for Horticultural Science. 2024. S. 95-96. (Acta Horticulturae). doi: 10.17660/ActaHortic.2024.1412.14
Pfeifer, M. ; Richter, S. ; Wohner, T. et al. / Investigation on apple blotch resistance of Malus baccata 'Jackii'. Proceedings of the XVI EUCARPIA Symposium on Fruit Breeding and Genetics. International Society for Horticultural Science, 2024. S. 95-96 (Acta Horticulturae).
Download
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title = "Investigation on apple blotch resistance of Malus baccata 'Jackii'",
abstract = "The fungal pathogen Diplocarpon coronariae causes apple blotch and has rapidly spread throughout Europe in recent years. The most sustainable approach to control this disease is breeding cultivars that exhibit high tolerance or resistance to it. Screenings of the Malus germplasm collection from the Fruit Genebank of the Julius K{\"u}hn Institute showed that an accession from Malus baccata is resistant to Diplocarpon coronariae. In this study, Malus baccata {\textquoteleft}Jackii{\textquoteright} and two susceptible genotypes were artificially inoculated and evaluated for their resistance to apple blotch in a detached leaf assay. The phenotypic evaluation revealed a difference in the number of necrotic spots among the genotypes. Additionally, after abrading the cuticle with silicon carbide, a higher amount of Diplocarpon coronariae-specific DNA was detectable in the susceptible cultivars compared to Malus baccata {\textquoteleft}Jackii{\textquoteright}. This indicates that the resistance mechanism observed in Malus baccata {\textquoteleft}Jackii{\textquoteright} is not restricted to the cuticle.",
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AU - Pfeifer, M.

AU - Richter, S.

AU - Wohner, T.

AU - Peil, A.

AU - Knoche, M.

AU - Flachowsky, H.

N1 - Publisher Copyright: © 2024 International Society for Horticultural Science. All rights reserved.

PY - 2024/10/30

Y1 - 2024/10/30

N2 - The fungal pathogen Diplocarpon coronariae causes apple blotch and has rapidly spread throughout Europe in recent years. The most sustainable approach to control this disease is breeding cultivars that exhibit high tolerance or resistance to it. Screenings of the Malus germplasm collection from the Fruit Genebank of the Julius Kühn Institute showed that an accession from Malus baccata is resistant to Diplocarpon coronariae. In this study, Malus baccata ‘Jackii’ and two susceptible genotypes were artificially inoculated and evaluated for their resistance to apple blotch in a detached leaf assay. The phenotypic evaluation revealed a difference in the number of necrotic spots among the genotypes. Additionally, after abrading the cuticle with silicon carbide, a higher amount of Diplocarpon coronariae-specific DNA was detectable in the susceptible cultivars compared to Malus baccata ‘Jackii’. This indicates that the resistance mechanism observed in Malus baccata ‘Jackii’ is not restricted to the cuticle.

AB - The fungal pathogen Diplocarpon coronariae causes apple blotch and has rapidly spread throughout Europe in recent years. The most sustainable approach to control this disease is breeding cultivars that exhibit high tolerance or resistance to it. Screenings of the Malus germplasm collection from the Fruit Genebank of the Julius Kühn Institute showed that an accession from Malus baccata is resistant to Diplocarpon coronariae. In this study, Malus baccata ‘Jackii’ and two susceptible genotypes were artificially inoculated and evaluated for their resistance to apple blotch in a detached leaf assay. The phenotypic evaluation revealed a difference in the number of necrotic spots among the genotypes. Additionally, after abrading the cuticle with silicon carbide, a higher amount of Diplocarpon coronariae-specific DNA was detectable in the susceptible cultivars compared to Malus baccata ‘Jackii’. This indicates that the resistance mechanism observed in Malus baccata ‘Jackii’ is not restricted to the cuticle.

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